<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">工业时序数据库系统</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>
      <!-- <el-form-item prop="verifycode">
        <span class="svg-container">
          <svg-icon icon-class="verifycode" />
        </span>
        <el-input v-model="loginForm.verifycode" placeholder="验证码" style="max-width: 260px" @change="handleLogin" />
        <img class="login-img" :src="imgurl" alt="" @click="toggleCode">
      </el-form-item> -->

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>

      <!-- <div class="tips">
        <span style="margin-right:20px;">username: admin</span>
        <span> password: any</span>
      </div> -->

    </el-form>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import { Message } from 'element-ui'
import { formatTime } from '@/utils/util.js'
import axiosservice from '@/utils/CommonData.js'

export default {
  name: 'Login',
  data() {
    var num = Math.ceil(Math.random() * 10000)// 生成一个随机数（防止缓存）
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码要求最少6位'))
      } else {
        callback()
      }
    }
    return {
      imgurl: process.env.VUE_APP_SERVER_BASE_API + '/verifycode?num=' + num,
      loginForm: {
        username: 'admin',
        password: '123456',
        verifycode: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        verifycode: [{ required: true, message: '请输入验证码', trigger: 'blur' }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  mounted() {
    // this.getAllAlertMessage()
    // this.DataForAlertMessage.timerId = setInterval(this.getNewAlertMessage, 3000)
  },
  methods: {
    getNewAlertMessage() {
      axiosservice({
        url: '/getnewmessage',
        method: 'get'
      })
        .then((res) => {
          if (res.status == 200) {
            if (res.data.code == 200) { //
              const resdata = res.data.data
              console.log(resdata)
              var i = 0
              if (resdata.length > 5) {
                for (i = 0; i < resdata.length; i++) {
                  const obj = resdata[i] // 不需要字符串转对象
                  const tempObj = {
                    alertname: obj.alertname,
                    time: formatTime(obj.time),
                    content: obj.content
                  }
                  this.DataForAlertMessage.messageList.unshift(tempObj)// 头插入
                }
                this.$message({
                  message: '有5条以上的新警报发生，请在警报检测页面查看',
                  type: 'warning'
                })
              } else {
                for (i = 0; i < resdata.length; i++) {
                  const obj = resdata[i] // 不需要字符串转对象
                  const tempObj = {
                    alertname: obj.alertname,
                    time: formatTime(obj.time),
                    content: obj.content
                  }
                  this.DataForAlertMessage.messageList.unshift(tempObj)// 头插入
                  this.$message({
                    message: '警报:' + tempObj.alertname + ' ' + tempObj.content,
                    type: 'warning'
                  })
                }
              }
            } else {
              console.log(res.data)
            }
          }
        })
        .catch((error) => {
          console.log(error)
          this.$message.error('获取数据失败!')
        })
    },
    getAllAlertMessage() {
      axiosservice({
        url: '/getallmessage',
        method: 'get'
      })
        .then((res) => {
          this.DataForAlertMessage.timerId = setInterval(this.getNewAlertMessage, 3000)
          if (res.status == 200) {
            if (res.data.code == 200) { //
              const resdata = res.data.data
              for (const i of resdata) { // 首次加载，全部插入，不报警
                if (i != '{}') {
                  const obj = JSON.parse(i) // 字符串转对象
                  const tempObj = {
                    alertname: obj.alertname,
                    time: formatTime(parseInt(obj.time)),
                    content: obj.content
                  }
                  this.DataForAlertMessage.messageList.unshift(tempObj)// 头插入
                }
              }
              // this.lasttime = JSON.parse(resdata[resdata.length - 1]).time
            } else {
              console.log(res.data)
            }
          }
        })
        .catch((error) => {
          this.DataForAlertMessage.timerId = setInterval(this.getNewAlertMessage, 3000) // 无论成功失败都要启动定时器
          console.log(error)
          this.$message.error('获取数据失败!')
        })
    },
    toggleCode() {
      var num = Math.ceil(Math.random() * 10000)// 生成一个随机数（防止缓存）
      this.imgurl = process.env.VUE_APP_SERVER_BASE_API + '/verifycode?num=' + num
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.getAllAlertMessage()
            // this.DataForAlertMessage.timerId = setInterval(this.getNewAlertMessage, 3000)
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch((error) => {
            console.log('登录错误' + error)
            this.loading = false
          })
        } else {
          Message({
            message: '输入格式不合法，请检查输入',
            type: 'error',
            duration: 3 * 1000
          })
          console.log('输入格式不合法，请检查输入')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  .login-img{
    position: absolute;
    right: 0px;
    // top: 3px;
    display: inline-block;
    vertical-align: middle;
    height: 100%;
    border-radius: 5px;
    max-width: 230px
  }
}
</style>
